Voltage configurable solid state lighting apparatuses, systems, and related methods

• US 9,826,581 B2
• Filed: 12/07/2015
• Issued: 11/21/2017
• Est. Priority Date: 12/05/2014
• Status: Active Grant

• Current Assignee: Creeled Incorporated
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Johnson, Jeremy Allen, Bendtsen, Andrew Dan, Hussell, Christopher P., Wilcox, Kurt S., Hardin, Craig William
• Primary Examiner(s): A, Minh D
• Application Number:
  US14/961,439
• Publication Number:
  US 20160165680A1
• Time in Patent Office: 715 Days
• Field of Search: 362227, 362232, 36224901, 36224902, 315250, 315252
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21Y 2105/18 annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/48137 the bodies being arranged next to each other, e.g. on a common substrate
• CPC Class Codes: H01L 25/167 comprising optoelectronic devices, e.g. LED, photodiodes
• CPC Class Codes: H05B 45/3725 Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/48 having LEDs organised in strings and incorporating parallel shunting devices
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]
• CPC Class Codes: H05K 2201/1031 Surface mounted metallic connector elements
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

Solid state lighting apparatuses, systems, and related methods are described. A solid state lighting apparatus includes an array of solid state light emitters arranged on or over the substrate and a plurality of driving components arranged on or over the substrate. The driving components are configured to independently activate and deactivate at least some of the solid state light emitters of the array of solid state light emitters during a portion of an alternating current (AC) cycle. A method of providing a solid state lighting apparatus includes providing a substrate, mounting an array of solid state light emitters on or over the substrate, and providing a plurality of driving components on or over the substrate. A solid state lighting system includes a solid state lighting apparatus having an array of solid state light emitters, driving components, and a rectifying circuit for rectifying current supplied to the driving components.

Claims

1. A solid state lighting apparatus comprising:

a substrate;

an array of solid state light emitters arranged on or over the substrate;

a plurality of driving components arranged on or over the substrate, wherein each driving component is configured to independently activate and deactivate different solid state light emitters of the array of solid state light emitters during a portion of an alternating current (AC) cycle; and

terminals by which a user can select a series or parallel connection for the plurality of driving components.

2. The solid state lighting apparatus of claim 1, wherein the apparatus is selectively configurable for operability at between approximately 120 Volts (V) and approximately 240 V of AC current.

3. The solid state lighting apparatus of claim 1, wherein the apparatus comprises two or more driving components.

4. The solid state lighting apparatus of claim 1, wherein the apparatus comprises three or more driving components.

5. The solid state lighting apparatus of claim 1, wherein a first driving component is configured to illuminate a first set of solid state light emitters and wherein a second driving component is configured to illuminate a second, different set of solid state light emitters.

6. The solid state lighting apparatus of claim 5, wherein the first and second sets of solid state light emitters target different color temperatures ranging between approximately 1800K and 6000K.

7. The solid state lighting apparatus of claim 5, wherein the first and second sets of solid state light emitters comprise a plurality of strings of serially connected solid state light emitters, and where each string of the plurality of strings is operable to emit a different color temperature ranging between approximately 1800K and 6000K.

8. The solid state lighting apparatus of claim 1, wherein the plurality of driving components are electrically connected in series.

9. The solid state lighting apparatus of claim 1, wherein the plurality of driving components are electrically connected in parallel.

10. The solid state lighting apparatus of claim 1, wherein the substrate comprises a printed circuit board.

11. The solid state lighting apparatus of claim 1, wherein the substrate comprises Alumina, and wherein the array of solid state light emitters is arranged on the substrate.

12. A method of providing a solid state lighting apparatus, the method comprising:

providing a substrate;

mounting an array of solid state light emitters on or over the substrate;

providing a plurality of independent driving components on or over the substrate, wherein the driving components are configured to independently activate and deactivate at least some solid state emitters of the array of solid state light emitters during a portion of an alternating current (AC) cycle; and

providing terminals by which a user can select a series or parallel connection for the plurality of driving components.

13. The method of claim 12, further comprising selectively configuring the apparatus for operability at between approximately 120 Volts (V) and approximately 240 V of AC current.

14. The method of claim 12, further comprising providing two or more driving components.

15. The method of claim 12, further comprising providing three or more driving components.

16. The method of claim 12, further comprising illuminating a first set of solid state light emitters via a first driving component, and further comprising illuminating a second set of solid state light emitters via a second, different driving component.

17. The method of claim 16, wherein the first and second sets of solid state light emitters target different color temperatures ranging between approximately 1800K and 6000K.

18. The method of claim 16, wherein the first and second sets of solid state light emitters comprise a plurality of strings of serially connected solid state light emitters, and where each string of the plurality of strings is operable to emit a different color temperature ranging between approximately 1800K and 6000K.

19. The method of claim 12, wherein the plurality of driving components are electrically connected in series or in parallel.

20. The method of claim 12, wherein the substrate comprises a printed circuit board.

21. The method claim 12, wherein the substrate comprises Alumina, and wherein the array of solid state light emitters is arranged on the substrate.

22. A solid state lighting system comprising:

a solid state lighting apparatus comprising;

an array of solid state light emitters arranged on or over the substrate;

at least three driving components arranged on or over the substrate for independently activating different sets of sold state light emitters during a portion of an alternating current (AC) cycle; and

terminals by which a user can select a series or parallel connection for the at least three driving components; and

a rectifying circuit for rectifying electrical current supplied to the driving components.

23. The system of claim 22, wherein the solid state light emitters target a color temperature ranging between approximately 1800K and 6000K.

24. The solid state lighting system of claim 22, wherein the at least three driving components are electrically connected in series or in parallel.

25. A solid state lighting apparatus comprising:

a substrate;

an emitter area arranged on or over the substrate comprising an array of solid state light emitters, wherein the emitter area comprises an at least generally square surface area of approximately 300 mm² or more; and

a plurality of driving components arranged on or over the substrate, wherein each driving component is configured to independently activate and deactivate different solid state light emitters of the array of solid state light emitters during a portion of an alternating current (AC) cycle.

26. The solid state lighting apparatus of claim 25, wherein the apparatus comprises three or more driving components.

27. The solid state lighting apparatus of claim 25, wherein more than 120 light emitting diode (LED) chips are disposed over the surface area.

28. The solid state lighting apparatus of claim 25, wherein more than 120 junctions are disposed over the surface area.

29. The solid state lighting apparatus of claim 25, wherein the apparatus comprises 12 strings of serially connected LED chips disposed over the surface area.

30. The solid state lighting apparatus of claim 25, wherein the apparatus is operable at less than approximately 50 Watts (W).

31. The solid state lighting apparatus of claim 25, wherein the apparatus is operable at 50 Watts (W) or more.

32. The solid state lighting apparatus of claim 25, wherein the array of solid state light emitters target a color temperature ranging between approximately 1800K and 6000K.

33. The solid state lighting apparatus of claim 25, wherein the apparatus emits 120 lumens per watt (LPW) or more at approximately 55°

C.

34. The solid state lighting apparatus of claim 25, wherein the apparatus emits 120 lumens per watt (LPM) or more at an elevated temperature range of approximately 55°

C. to 100°

C.

35. The solid state lighting apparatus of claim 25, wherein each sold state light emitter comprises an LED chip that is approximately 685 μ

m×

1135 μ

m.

36. The solid state lighting apparatus of claim 25, wherein each sold state light emitter comprises a multi-junction LED chip.

37. The solid state lighting apparatus of claim 25, wherein the substrate comprises a surface area of approximately 980 mm² or more.

38. A lighting fixture incorporating the solid state lighting apparatus of claim 25.

39. The lighting fixture of claim 38, comprising a down light, a street light, a high-bay light, or a low-bay light.

40. A solid state lighting system comprising:

a solid state lighting apparatus comprising;

a substrate;

an array of solid state light emitters arranged on or over the substrate;

a plurality of driving components arranged on or over the substrate, wherein each driving component is configured to independently activate and deactivate different solid state light emitters of the array of solid state light emitters upon receipt of rectified alternating current (AC) or direct current (DC) from a current-source; and

terminals by which a user can select a series or parallel connection for the plurality of driving components.

41. The system of claim 40, wherein a circuit board provides the rectified AC.

42. The system of claim 40, wherein a circuit board provides the DC.